The money market is a good place for individuals, banks, other companies, and governments to park cash for a short period of time, usually one year or less. It exists so that businesses and governments that need cash to operate can get it quickly at a reasonable cost, and so that businesses that have more cash than they need can put it to use.

The returns are modest but the risks are low. The instruments used in the money markets include deposits, collateral loans, acceptances, and bills of exchange. Institutions operating in the money markets include the Federal Reserve, commercial banks, and acceptance houses.

When a company or government issues short-term debt, it's usually to cover routine operating expenses or supply working capital, not for capital improvements or large-scale projects. 

The capital market is where stocks and bonds are traded. Its movements from hour to hour are constantly monitored and analyzed for clues as to the health of the economy at large, the status of every industry in it, and the consensus for the short-term future.

The overriding goal of the companies institutions that enter into the capital markets is to raise money for their long-term purposes, which usually come down to expanding their businesses and increasing their revenues. They do this by issuing stock shares and by selling corporate bonds.